To Connect The Backup Heater Power Supply - Rotex RHBH04CA3V Manuel D'installation

3.5.4 To connect the backup heater power supply

CAUTION
If the indoor unit has a tank with a built-in electrical booster
heater, use a dedicated power circuit for the backup heater
and booster heater. NEVER use a power circuit shared by
another appliance. This power circuit must be protected with
the required safety devices according to the applicable
legislation.
The backup heater capacity can vary, depending on the indoor unit
model. Make sure that the power supply is in accordance with the
backup heater capacity, as listed in the table below.
Backup
Backup heater
heater type capacity
*3V 3 kW 1~ 230 V
*9W 3 kW 1~ 230 V
6 kW 1~ 230 V
6 kW 3~ 230 V
6 kW 3N~ 400 V
9 kW 3N~ 400 V
(a) Equipment complying
(European/International Technical Standard setting the limits for
harmonic currents produced by equipment connected to public low-
voltage systems with input current >16 A and 75 A per phase.).
(b) This equipment
(European/International Technical Standard setting the limits for
voltage changes, voltage fluctuations and flicker in public low-voltage
supply systems for equipment with rated current 75 A) provided
that the system impedance Z
interface point between the user's supply and the public system. It is
the responsibility of the installer or user of the equipment to ensure,
by consultation with the distribution network operator if necessary,
that the equipment is connected only to a supply with a system
impedance Z less than or equal to Z
sys
1 Connect the backup heater power supply.
For *3V models, use a single pole fuse for F1B. For *9W models,
use a double pole fuse for F1B.
RHBH/X04+08+16CA
Rotex HPSU low temperature Bi-Bloc
4P330419-1A – 2012.11
Maximum
Power running
Z
supply current
max
13 A —
13 A —
0.29
(a)(b)
26 A
—
(b)
15 A
8.6 A —
13 A —
with EN/IEC 61000-3-12
complies with EN/IEC 61000-3-11
is less than or equal to Z
sys max
.
max
Backup heater
backup heater power
(a)
type
3 kW 1~ 230 V
(*3V)
3 kW 1~ 230 V
(*9W)
( )
6 kW 1~ 230 V
(*9W)
6 kW 3~ 230 V
(*9W)
at the
6 kW 3N~ 400 V
(*9W)
9 kW 3N~ 400 V
(*9W)
(a) For configuration of the backup heater, see Quick wizard: Standard.
2 Fix the cable with cable ties to the cable tie mountings.
3 Configure the user interface for the respective power supply.
See Quick wizard: Standard.
During connection of the backup heater, miswiring is possible. To
detect possible miswiring, it is highly recommended to measure the
resistance value of the heater elements. Depending on the different
backup heater types, following resistance values (see table below)
should be measured. ALWAYS measure the resistance on the
contactor clamps K1M, K2M, and K5M.
3 kW
1~
230 V
K1M/1 K5M/13 52.9
K1M/3
K1M/5
K1M/3 K1M/5 26.5
K2M/1 K5M/13
K2M/3
K2M/5
K2M/3 K2M/5 52.9
K1M/5 K2M/1
3 Installation
Connections to
Connections to
supply terminals
—
F1B
L N L N
F1B X6M
1 2 3 4
L L N N
X6M
1 2 3 4
F1B X6M
1 2 3 4
L1 L1 L2 L2 L3 L3 L1 L2 L3
F1B X6M
1 2 3 4
L1 L2 L3 L1 L1 L2 L2 L3 L3
6 kW 6 kW 6 kW
1~ 3~ 3N~
230 V 230 V 400 V
52.9 52.9
105.8
105.8
26.5 26.5 105.8
26.5 26.5
52.9
52.9
52.9 52.9 52.9
X7M
5 6 7 8
X7M
5 6 7 8
X7M
5 6 7 8
X7M
5 6 7 8
9 kW
3N~
400 V
105.8
105.8
105.8
52.9
52.9
52.9
Installation manual
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